P.Audio 18FT-100SW is an 18-inch 8 ohm LF driver rated at 1300 W RMS. The validated T/S data includes Fs 35 Hz, Qts 0.47, Vas 222.9 L, Xmax 7.5 mm, sensitivity 94.8 dB, plus 924 cm³ Vd and 70 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.
The published T/S values agree with each other
Thiele/Small
Fs
35Hz
Qts
0.47
Qes
0.50
Qms
9.7
Vas
222.9L
Re
5.6Ω
Le
1.28mH
Motor and cone
BL
24.2T·m
Sd
1232cm²
Mms
219g
Xmax
7.5mm
Vd †
924cm³
Voice coil
99mm
Flux density
1.10T
Power and response
Sensitivity †
94.8dB
Manufacturer sensitivity
97dB
Power
1300W
Nominal power
1300W
Impedance
8Ω
Range
35–1000Hz
EBP †
70 · Sealed or vented
Size and mounting
Diameter
467mm
Cutout
426mm
Depth
220mm
Weight
14.3kg
Other published values
Cms
0.08mm/N
Power Program
2600
Other dimensions
Mounting Depth
220
Mounting Diameter
446
Sensitivity shows 94.8 dB, calculated from the T/S values. P.Audio publishes 97.0 dB, 2.2 dB apart.